"Trilogy of Terror" meets "The Evil Dead" in writer-director Rolfe Kanefsky's devilish "Nightmare Man." Ellen (Blythe Metz) is a level-headed gal who drops down in the sanity meter when she receives a creepy tribal fertility mask in the mail and claims it is out to get her. En route with husband William (Luciano Szafir) to a mental hospital to be checked out, their car runs out of gas and Ellen finds herself left alone when William goes to get help. The title figure wastes little time in making himself known, and pretty soon four unsuspecting young people at a nearby secluded house will be able to stake a claim in his existence. Running through about three or four horror subgenres from start to finish, "Nightmare Man" keeps reinventing itself each time one of themslasher pic, demonic possession flick, etc.begins to lose steam. Granted, the film is rough around the edges and lacks the slickness of a bigger-budgeted production, but it is also frequently funny in its adherence to clichésall three female characters manage to disrobe into their bra and panties (or less) at some pointand does boast an energetic tone. Of the actors, B-movie queen Tiffany Shepis, as the sexy, caustic Mia, is charismatic enough that she deserves to break through to the mainstream.